Daikin DDC Series Installation And Maintenance Manual

Contents

Daikin DDC Series Installation And Maintenance Manual Manual pdf 7 page image

53. Lift unit per the “Rigging Details” section of this manual,observing all warnings and cautions. When unit is lifted,boards and shipping brace will drop if screws have beenremoved. To avoid injury, STAND CLEAR.4. Dispose of the boards and brace appropriately.Curb installations must comply with local codes and should be donein accordance with the established guidelines of the National Roof-ing Contractors Association.Proper unit installation requires that the roof curb be firmly andpermanently attached to the roof structure. Check for adequatefastening method prior to setting the unit on the curb.Full perimeter roof curbs are available from the factory and areshipped unassembled. Field assembly, squaring, leveling andmounting on the roof structure are the responsibility of the in-stalling contractor. All required hardware necessary for the as-sembly of the sheet metal curb is included in the curb accessory.T O PREVENT POSSIBLE EQUIPMENT DAMAGE, PROPERTY DAMAGE,PERSONAL INJURY OR DEATH, THE FOLLOWING BULLET POINTS MUSTBE OBSERVED WHEN INSTALLING THE UNIT .WARNING• Sufficient structural support must be determined prior tolocating and mounting the curb and package unit.• Ductwork must be constructed using industry guidelines.The duct work must be placed into the roof curb beforemounting the package unit. Our full perimeter curbsinclude duct connection frames to be assembled with thecurb. Cantilevered type curbs are not available from thefactory.• Curb insulation, cant strips, flashing and general roofingmaterial are furnished by the contractor.The curbs must be supported on parallel sides by roof members.The roof members must not penetrate supply and return ductopening areas as damage to the unit might occur.NOTE: The unit and curb accessories are designed to allow verticalduct installation before unit placement. Duct installation after unitplacement is not recommended.ALL CURBS LOOK SIMILAR. TO AVOID INCORRECT CURBPOSITIONING , CHECK JOB PLANS CAREFULLY AND VERIFY MARKINGSON CURB ASSEMBLY. I NSTRUCTIONS MAY VARY IN CURB STYLES ANDSUPERSEDES INFORMATION SHOWN .CAUTIONSee the manual shipped with the roof curb for assembly and in-stallation instructions.CLEARANCES36”; minimumroof overhang48” Min.65”Min.*48”Min.48”Min.**In situations that have multiple units, a 48” minimum clearance isrequired between the condenser coils.UNIT CLEARANCESAdequate clearance around the unit should be kept for safety, ser-vice, maintenance, and proper unit operation. A total clearanceof 75” around this unit is recommended to facilitate possible blowerassembly, shaft, wheel replacement, coil, heat exchanger, electricheat and gas furnace removal. This unit must not be installed be-neath any obstruction. This unit should be installed remote fromall building exhausts to inhibit ingestion of exhaust air into theunit’s fresh air intake.InsulatedPanelsRoof Curb Installation